package com.xuzhen.thread.localVa.three;

public class IntUtil {
	private static IntUtil intUtil;
	
	private IntUtil(){
		
	}
	
	public static IntUtil getInstance(){
		if(intUtil==null){
			return new IntUtil();
		}
		return intUtil;
	}
	
	public int add(int a,int b){
		return a+b;
	}
}
